679227780 has 192 divisors, whose sum is σ = 2402426880. Its totient is φ = 139276800.

The previous prime is 679227739. The next prime is 679227793. The reversal of 679227780 is 87722976.

It is a super-2 number, since 2×679227780² = 922700754247456800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 364050 + ... + 365910.

It is an arithmetic number, because the mean of its divisors is an integer number (12512640).

Almost surely, 2^679227780 is an apocalyptic number.

679227780 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679227780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1201213440).

679227780 is an abundant number, since it is smaller than the sum of its proper divisors (1723199100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

679227780 is a wasteful number, since it uses less digits than its factorization.

679227780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970 (or 1968 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 48.

The square root of 679227780 is about 26061.9987721587. The cubic root of 679227780 is about 879.0329338549.

The spelling of 679227780 in words is "six hundred seventy-nine million, two hundred twenty-seven thousand, seven hundred eighty".